Archives at the Institute for Fisheries Research (IFR) hold records of thousands of lake surveys from the University of Michigan and Michigan Department of Natural Resources. The records contained in this dataset are jpeg images of the index card records from the IFR surveys. Images include the front of the card and when available, the back of a card. and Fish Collection Cards report the number of individuals of each species captured. The cards also record what gear (for example seine or gill net) was used for surveys, where fish were sampled in the lake, and when and for how long sampling occurred.
